
\section{Academic Focus}

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	\textbf{Next generation} high N.A. 3D vector non-uniform analytic linear \& nonlinear Fourier crystal optics \href{https://github.com/ChenZhu-Xie/PhD_academia}{\raisebox{-0.05\height}{\color{black!50}\faGithub}} & 2024.06 \textendash
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\begin{tabularx}{\linewidth}{@{\extracolsep{\fill}} R{0.9\linewidth}r}
	\XGap{-0.2em} {\small \color{color-detail} !Paraxial $\boldsymbol{k}^{\;\!\omega}_0$ \cmmnt{$\Rightarrow$}} \hfill \textbf{High N.A.} 3D vector non-uniform analytic linear \& nonlinear Fourier crystal optics \href{https://github.com/ChenZhu-Xie/PhD_academia/blob/master/1__Group_Meeting/8.1__\%E9\%AB\%98_N.A._\%E7\%9F\%A2\%E9\%87\%8F_\%E7\%B4\%A7\%E8\%81\%9A\%E7\%84\%A6_\%E2\%86\%90_Python__4.0_year_-_2024.3.12.pdf}{\raisebox{-0.05\height}{\color{black!50}\faGithub}} & 2024.03 \textendash
\end{tabularx}
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\begin{tabularx}{\linewidth}{@{\extracolsep{\fill}} R{0.9\linewidth}r}
	\XGap{-0.4em} {\small \color{color-detail} Emphasizing {\footnotesize ${\boldsymbol G}_{\mathrm{xyz}}^{\;\!\omega}$}  \cmmnt{$\Rightarrow$}} \hfill \textbf{3D} vector non-uniform analytic linear \& nonlinear Fourier crystal optics \href{https://github.com/ChenZhu-Xie/PhD_academia/blob/master/1__Group_Meeting/7.1__\%E4\%B8\%AD\%E6\%9C\%9F\%E7\%AD\%94\%E8\%BE\%A9_\%E8\%B0\%A2\%E5\%B0\%98\%E7\%AB\%B9_\%E2\%86\%90_Python__3.5_year_-_2023.12.28.pdf}{\raisebox{-0.05\height}{\color{black!50}\faGithub}} & 2023.12 \textendash
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\begin{tabularx}{\linewidth}{@{\extracolsep{\fill}} R{0.9\linewidth}r}
	\XGap{-0.6em} {\small \color{color-detail} Involving {\footnotesize $\bar{\bar{\bar{\boldsymbol{\chi}}}}^{(2)}_{\omega}$} anisotropy \cmmnt{$\Rightarrow$}} \hfill \textbf{Vector} non-uniform analytic linear \& nonlinear Fourier crystal optics \href{https://github.com/ChenZhu-Xie/PhD_academia/blob/master/1__Group_Meeting/6.2__\%E7\%BB\%B4\%E7\%89\%B9\%E6\%A0\%B9\%E6\%96\%AF\%E5\%9D\%A6_\%E2\%86\%90_Python\%2BVisio\%2BBookxNote_Pro\%2BLabView\%2BLatex__3.0_year_-_2023.6.9.pdf}{\raisebox{-0.05\height}{\color{black!50}\faGithub}} & 2023.06 \textendash
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\begin{tabularx}{\linewidth}{@{\extracolsep{\fill}} R{0.9\linewidth}r}
	\XGap{-0.8em} {\small \color{color-detail} !Unitary {\footnotesize ${\boldsymbol G}_\omega^{\pm}$ $\Leftarrow$} !Hermitian $\bar{\bar{\boldsymbol{\varepsilon}}}^{\;\!\omega}_{\mathrm{r}}$ $\Rightarrow$} \hfill \textbf{Non-uniform} analytic linear \& nonlinear Fourier crystal optics \href{https://github.com/ChenZhu-Xie/PhD_academia/blob/master/1__Group_Meeting/6.1__\%E6\%B0\%B4\%E5\%BD\%A9\%E8\%8A\%B1\%E9\%B8\%9F_\%E2\%86\%90_Python__3.0_year_-_2023.3.27.pdf}{\raisebox{-0.05\height}{\color{black!50}\faGithub}} & 2023.03 \textendash
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%$\left[ \left( \boldsymbol{\nabla} \times \right)^2 - k^{2}_{0\omega} \bar{\bar{\boldsymbol{\varepsilon}}}^{\;\!\prime\omega}_{\mathrm{r}z} \cdot \right] \boldsymbol{E}^{\;\!\omega}_z = \boldsymbol{0}$
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\begin{tabularx}{\linewidth}{@{\extracolsep{\fill}} R{0.9\linewidth}r}
	\XGap{-1.0em} {\small \color{color-detail} Solution {\footnotesize ${\boldsymbol E}_\omega^{\pm}$} to {\footnotesize $\left( {{\boldsymbol{\nabla} ^2} + k_{\omega\pm}^2} \right)\!{\boldsymbol{E}_\omega^{\pm}} \! \propto \! \boldsymbol{P}_{\omega\pm}^{(2)}$} \cmmnt{$\Leftrightarrow$}} \hfill \textbf{Analytic} linear \& nonlinear Fourier crystal optics \href{https://github.com/ChenZhu-Xie/PhD_academia/blob/master/1__Group_Meeting/5.1__NLAST\%EF\%BC\%9A\%E9\%87\%8D\%E7\%8E\%B0\%E8\%BF\%87\%E5\%8E\%BB\%EF\%BC\%88\%E5\%B7\%B2\%E7\%9F\%A5\%EF\%BC\%89\%E3\%80\%81\%E9\%A2\%84\%E6\%B5\%8B\%E6\%9C\%AA\%E6\%9D\%A5\%EF\%BC\%88\%E6\%9C\%AA\%E7\%9F\%A5\%EF\%BC\%89\%EF\%BC\%8C\%E4\%B8\%80\%E7\%BB\%9F\%E5\%BD\%93\%E4\%B8\%8B\%EF\%BC\%88\%E5\%85\%A8\%E7\%9F\%A5\%EF\%BC\%89_\%E2\%86\%90_Python__2.5_year_-_2022.9.28.pdf}{\raisebox{-0.05\height}{\color{black!50}\faGithub}} & 2022.09 \textendash
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\begin{tabularx}{\linewidth}{@{\extracolsep{\fill}} R{0.9\linewidth}r}
	\XGap{-1.2em} {\small \color{color-detail} Solution {\footnotesize $\mathcal{F} \left[ E_3 \right] = \mathcal{F} \left[ f \left( \mathcal{F}^{-1} \left[ \cdot \right] \right) \right]$} to the Eq. below \cmmnt{$\Leftrightarrow$}} \hfill \textbf{Nonlinear} angular spectrum theory for SFG \href{https://github.com/ChenZhu-Xie/postgraduate_academia/blob/main/1__Group_Meeting/4.2__NLAST_scalar_\%E2\%86\%90_Python\%2BBookxNote_Pro__2.0_year_-_2022.6.9.pdf}{\raisebox{-0.05\height}{\color{black!50}\faGithub}} & 2022.06 \textendash
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	\XGap{-1.4em} {\small \color{color-detail} Solution {\footnotesize $\mathcal{F} \left[ E_3 \right] = \iiiint$} to {\footnotesize $\left( {{\boldsymbol{\nabla} ^2} + k_3^2} \right)\!{E_3}\!\left( \boldsymbol{r} \right) \! \propto \! P_3^{\left( 2 \right)}\!\left( \boldsymbol{r} \right)$} \cmmnt{$\Leftrightarrow$}} \hfill \textbf{Nonlinear} convolution solution to SFG \href{https://github.com/ChenZhu-Xie/postgraduate_academia/blob/main/1__Group_Meeting/4.1__NLAST_v1.0_\%E2\%86\%90_Python\%2BBookxNote_Pro__2.0_year_-_2022.3.4.pdf}{\raisebox{-0.05\height}{\color{black!50}\faGithub}} & 2022.03 \textendash
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% gap gap gap gap gap gap gap gap
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\begin{tabularx}{\linewidth}{@{\extracolsep{\fill}} L{0.9\linewidth}r}
	\XGap{-1.6em} \small \href{https://github.com/ChenZhu-Xie/postgraduate_academia/blob/main/2__Side_Projects/3.5__\%E6\%94\%BE\%E5\%BC\%83THz\%EF\%BC\%9ATHz_\%E9\%9D\%9E\%E7\%BA\%BF\%E6\%80\%A7_LN_\%E8\%B6\%85\%E8\%A1\%A8\%E9\%9D\%A2_\%E6\%A0\%B9\%E6\%9C\%AC\%E7\%AE\%97\%E4\%B8\%8D\%E5\%8A\%A8_\%E2\%86\%90_COMSOL__1.5_year_-_2022.1.23.pdf}{\raisebox{-0.05\height}{\color{black!50}\faGithub}} Nonlinear THz LiNbO$_3$-based metasurface \hfill {\color{color-detail} \textbf{Quit THz project formally} $|$ COMSOL} & \textendash\ 2022.01
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\begin{tabularx}{\linewidth}{@{\extracolsep{\fill}} L{0.9\linewidth}r}
	\XGap{-2.1em} \small \href{https://github.com/ChenZhu-Xie/postgraduate_academia/blob/main/2__Side_Projects/3.3__THz_BWOPO_\%E2\%86\%90_Excel_VBA__1.5_year_-_2021.12.10_\%E8\%AE\%A8\%E8\%AE\%BA.pdf}{\raisebox{-0.05\height}{\color{black!50}\faGithub}} BWOPO + THz optical parametric amplification \hfill {\color{color-detail} Mathematica $|$ BookxNote Pro} & \textendash\ 2021.12
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\begin{tabularx}{\linewidth}{@{\extracolsep{\fill}} L{0.9\linewidth}r}
	\XGap{-2.6em} \small \href{https://github.com/ChenZhu-Xie/postgraduate_academia/blob/main/2__Side_Projects/3.2__THz_BWOPO_\%2B_THz_\%E5\%A3\%B0\%E5\%AD\%90\%E6\%9E\%81\%E5\%8C\%96\%E5\%AD\%90_\%E6\%88\%90\%E5\%83\%8F_\%E2\%86\%90_Excel_VBA__1.5_year_-_2021.11.23_\%E8\%AE\%A8\%E8\%AE\%BA.pdf}{\raisebox{-0.05\height}{\color{black!50}\faGithub}} THz backward optical parametric oscillator (BWOPO) \hfill {\color{color-detail} Mathematica $|$ VBA Excel} & \textendash\ 2021.11
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\begin{tabularx}{\linewidth}{@{\extracolsep{\fill}} L{0.9\linewidth}r}
	\XGap{-3.1em} \small \href{https://github.com/ChenZhu-Xie/postgraduate_academia/blob/main/2__Side_Projects/3.1__\%E5\%9F\%BA\%E4\%BA\%8E_OR_\%E7\%9A\%84_\%E7\%AA\%84\%E5\%B8\%A6_THz_OAM_\%E6\%BA\%90_\%E2\%86\%90_Blender\%2BPython__1.5_year_-_2021.11.5_\%E8\%AE\%A8\%E8\%AE\%BA.pdf}{\raisebox{-0.05\height}{\color{black!50}\faGithub}} Multi-cycle THz orbital angular momentum (OAM) source \hfill {\color{color-detail} RoamEdit $|$ Blender} & \textendash\ 2021.11
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\begin{tabularx}{\linewidth}{@{\extracolsep{\fill}} L{0.9\linewidth}r}
	\XGap{-3.6em} \small \href{https://github.com/ChenZhu-Xie/postgraduate_academia/blob/main/1__Group_Meeting/3.1__Multi-cycle_THz_OAM_Source_via_Optical_Rectification_\%E2\%86\%90_Blender\%2BRoamEdit__1.5_year_-_2021.10.20.pdf}{\raisebox{-0.05\height}{\color{black!50}\faGithub}} Narrow-band THz OAM source via Optical Rectification (OR) \hfill {\color{color-detail} Python $|$ Blender} & \textendash\ 2021.10
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\begin{tabularx}{\linewidth}{@{\extracolsep{\fill}} L{0.9\linewidth}r}
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	\XGap{-4.1em} \small \href{https://github.com/ChenZhu-Xie/postgraduate_academia/blob/main/1__Group_Meeting/2.3__Electricity\%E2\%86\%92Acoustics\%E2\%86\%92Optics_\%E2\%86\%90_VBA_Excel\%2BRoamEdit__1.0_year_-_2021.7.13.pdf}{\raisebox{-0.05\height}{\color{black!50}\faGithub}} Electricity $\xrightarrow[]{\text{produce}}$ Acoustics $\xrightarrow[]{\text{modulate}}$ Optics \hfill {\color{color-detail} RoamEdit $|$ VBA Excel} & \textendash\ 2021.07
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\begin{tabularx}{\linewidth}{@{\extracolsep{\fill}} L{0.9\linewidth}r}
	\XGap{-4.6em} \small \href{https://github.com/ChenZhu-Xie/postgraduate_academia/blob/main/1__Group_Meeting/2.2__Visible_Photons\%E2\%86\%92Terahertz_Spectroscopy_\%E2\%86\%90_VBA_Excel\%2BGeoGebra__1.0_year_-_2021.6.7.pdf}{\raisebox{-0.05\height}{\color{black!50}\faGithub}} Visible Photons $\xrightarrow[]{\text{SPDC}}$ THz Spectroscopy \hfill {\color{color-detail} BookxNote Pro $|$ GeoGebra $|$ VBA Excel} & \textendash\ 2021.06
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\begin{tabularx}{\linewidth}{@{\extracolsep{\fill}} L{0.9\linewidth}r}
	\XGap{-5.1em} \small \href{https://github.com/ChenZhu-Xie/postgraduate_academia/blob/main/1__Group_Meeting/2.1__Cavity_Phase_Matching_\%E2\%86\%90_RoamEdit\%2BGeoGebra\%2BExcel\%2BCOMSOL__1.0_year_-_2021.5.10.pdf}{\raisebox{-0.05\height}{\color{black!50}\faGithub}} Cavity Phase Matching $=$ Sheet OPO \hfill {\color{color-detail} Paint 3D $|$ RoamEdit $|$ GeoGebra $|$ VBA Excel} & \textendash\ 2021.05
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\begin{tabularx}{\linewidth}{@{\extracolsep{\fill}} L{0.9\linewidth}r}
	\XGap{-5.6em} \small \href{https://github.com/ChenZhu-Xie/postgraduate_academia/blob/main/1__Group_Meeting/1.2__Different_Ways\%E2\%86\%92THz_\%E2\%86\%90_Excel(VBA)__0.5_year_-_2021.1.18.pdf}{\raisebox{-0.05\height}{\color{black!50}\faGithub}} THz Holography via Optical Rectification \hfill {\color{color-detail} Matlab $|$ GeoGebra $|$ VBA Excel} & \textendash\ 2021.01
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\begin{tabularx}{\linewidth}{@{\extracolsep{\fill}} L{0.9\linewidth}r}
	\XGap{-6.1em} \small \href{https://github.com/ChenZhu-Xie/postgraduate_academia/blob/main/1__Group_Meeting/1.1__fs\%E2\%86\%92Optical_Rectification\%E2\%86\%92THz_\%E2\%86\%90_VBA_Excel\%2BGeoGebra__0.5_year_-_2020.12.10.pdf}{\raisebox{-0.05\height}{\color{black!50}\faGithub}} Femtosecond laser $\xrightarrow[]{\text{Optical Rectification}}$ Terahertz (THz) \hfill {\color{color-detail} GeoGebra $|$ VBA Excel} & \textendash\ 2020.12
\end{tabularx}
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\begin{tabularx}{\linewidth}{@{\extracolsep{\fill}} L{0.9\linewidth}r}
	\XGap{-6.6em} \small \href{https://github.com/ChenZhu-Xie/postgraduate_academia/blob/main/2__Side_Projects/1.1__Presentation_in\%E3\%80\%8CPrinciple_of_Optics\%E3\%80\%8DClass__0.5_year_-_2020.10.21.pdf}{\raisebox{-0.05\height}{\color{black!50}\faGithub}} Multicycle THz pulse generation by OR in LiNbO$_3$ ... crystals \hfill {\color{color-detail} VBA PowerPoinT} & \textendash\ 2020.10
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%}{}{}
}

%\entrybig
%	{\textbf{High N.A. analytic 3D vector non-uniform linear and nonlinear Fourier crystal optics}}{2024}
%	{Position at Group/Laboratory Name}{Summer 2019}
%\innerlist{
%	\entry{Title of the project}
%	\entryextra{A more detailed explanation of the project}
%}
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%\entrybig
%	{\textbf{University/Company Name}}{City, ISO}
%	{Position at Group/Laboratory Name}{Summer 2017}
%\innerlist{
%	\entry{Title of the project}
%	\entryextra{A more detailed explanation of the project}
%}
%
%\entrybig
%	{\textbf{University/Company Name}}{City, ISO}
%	{Position at Group/Laboratory Name}{Summer 2016}
%\innerlist{
%	\entry{Title of the project}
%	\entryextra{A more detailed explanation of the project}
%}

}
